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Mitral InsufficiencyMitral insufficiency results from inadequate closure of the mitral valves. The various causes include rheumatic heart disease (most common), ischemic heart disease, mitral valve prolapse, and congenital anomalies of mitral valve. Mitral insufficiency - regurgitation (return current) bloods from a left ventricle into the left atrium - increased left atrial pressure of a blood – hypertrophy LA (later dilatation) and increased pressure in pulmonary veins and in a small circle of blood circulation and a right ventricle chamber; the volume of the left ventricle chamber is enlarged. Direct feature of a mitral insufficiency - a regurgitation of a blood from left ventricle to the left atrium (a ventriculography, US, CT, МRA). Radiological features of the mitral insufficiency Heart: - a mitral configuration (a prominent pulmonary trunk, the left atrium, a left ventricle, a smoothness of a waist of heart is defined, on the right - a high locating of the right cardiovascular angle). - expansion of the left atrium (a deviation in the right party of the contrasted esophagus and increased of an bifurcation angle) - contrasted esophagus is displaced on an arch of the big radius 7-12 sm Lungs: fortition and deformation of a pulmonary vassels, expansion the hilar lungs.
Fig 3. Mitral insufficiency on roentgenograms and color doplerosonography
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